“Deep space engines” is a broad term that could refer to various propulsion systems designed for spacecraft intended for deep space exploration. The choice of propulsion depends on mission requirements, fuel efficiency, and the spacecraft’s intended destination. One common type of propulsion for deep space missions is electric propulsion, such as ion thrusters.
Electric propulsion systems, including ion thrusters, are often chosen for deep space missions due to their high efficiency and ability to provide continuous thrust over long durations, allowing for more fuel-efficient and extended missions. Specific details of the engine’s performance depend on the design and technology used in the specific electric propulsion system chosen for the mission.
The thrust equation for a turbojet engine using control volume analysis is expressed as:
where,
- is the thrust force,
- ṁe is the mass flow rate of exhaust gases in kilograms per second (kg/s).
- is the Exhaust velocity at the nozzle exit in meters per second (m/s).
- ṁ0 is the mass flow rate of inlet gases in kilograms per second (kg/s).
- is the Exhaust velocity at the nozzle Inlet in meters per second (m/s).
- is the Pressure at the nozzle exit in pascals (Pa).
- is the Pressure at the nozzle inlet in pascals (Pa).
- is the Area of the nozzle exit in square meters (m²).